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A Java security provider for supporting ShangMi algorithms in public key infrastructure
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/*
 * Copyright (c) 1996, 2022, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package com.tencent.kona.sun.security.x509;

/**
 * CertException indicates one of a variety of certificate problems.
 *
 * @deprecated use one of Exceptions defined in the java.security.cert
 * package.
 *
 * @see java.security.Certificate
 *
 *
 * @author David Brownell
 */
@Deprecated
public class CertException extends SecurityException {

    private static final long serialVersionUID = 6930793039696446142L;

    // Zero is reserved.

    /** Indicates that the signature in the certificate is not valid. */
    public static final int verf_INVALID_SIG = 1;

    /** Indicates that the certificate was revoked, and so is invalid. */
    public static final int verf_INVALID_REVOKED = 2;

    /** Indicates that the certificate is not yet valid. */
    public static final int verf_INVALID_NOTBEFORE = 3;

    /** Indicates that the certificate has expired and so is not valid. */
    public static final int verf_INVALID_EXPIRED = 4;

    /** Indicates that a certificate authority in the certification
     * chain is not trusted. */
    public static final int verf_CA_UNTRUSTED = 5;

    /** Indicates that the certification chain is too long. */
    public static final int verf_CHAIN_LENGTH = 6;

    /** Indicates an error parsing the ASN.1/DER encoding of the certificate. */
    public static final int verf_PARSE_ERROR = 7;

    /** Indicates an error constructing a certificate or certificate chain. */
    public static final int err_CONSTRUCTION = 8;

    /** Indicates a problem with the public key */
    public static final int err_INVALID_PUBLIC_KEY = 9;

    /** Indicates a problem with the certificate version */
    public static final int err_INVALID_VERSION = 10;

    /** Indicates a problem with the certificate format */
    public static final int err_INVALID_FORMAT = 11;

    /** Indicates a problem with the certificate encoding */
    public static final int err_ENCODING = 12;

    // Private data members
    private final int       verfCode;
    private final String    moreData;


    /**
     * Constructs a certificate exception using an error code
     * (verf_*) and a string describing the context
     * of the error.
     */
    public CertException(int code, String moredata)
    {
        verfCode = code;
        moreData = moredata;
    }

    /**
     * Constructs a certificate exception using just an error code,
     * without a string describing the context.
     */
    public CertException(int code)
    {
        verfCode = code;
        moreData = null;
    }

    /**
     * Returns the error code with which the exception was created.
     */
    public int getVerfCode() { return verfCode; }

    /**
     * Returns a string describing the context in which the exception
     * was reported.
     */
    public String getMoreData() { return moreData; }

    /**
     * Return a string corresponding to the error code used to create
     * this exception.
     */
    public String getVerfDescription()
    {
        switch (verfCode) {
            case verf_INVALID_SIG:
                return "The signature in the certificate is not valid.";
            case verf_INVALID_REVOKED:
                return "The certificate has been revoked.";
            case verf_INVALID_NOTBEFORE:
                return "The certificate is not yet valid.";
            case verf_INVALID_EXPIRED:
                return "The certificate has expired.";
            case verf_CA_UNTRUSTED:
                return "The Authority which issued the certificate is not trusted.";
            case verf_CHAIN_LENGTH:
                return "The certificate path to a trusted authority is too long.";
            case verf_PARSE_ERROR:
                return "The certificate could not be parsed.";
            case err_CONSTRUCTION:
                return "There was an error when constructing the certificate.";
            case err_INVALID_PUBLIC_KEY:
                return "The public key was not in the correct format.";
            case err_INVALID_VERSION:
                return "The certificate has an invalid version number.";
            case err_INVALID_FORMAT:
                return "The certificate has an invalid format.";
            case err_ENCODING:
                return "Problem encountered while encoding the data.";

            default:
                return "Unknown code:  " + verfCode;
        }
    }

    /**
     * Returns a string describing the certificate exception.
     */
    public String toString()
    {
        return "[Certificate Exception: " + getMessage() + ']';
    }

    /**
     * Returns a string describing the certificate exception.
     */
    public String getMessage()
    {
        return getVerfDescription()
                + ( (moreData != null)
                ? ( "\n  (" + moreData + ')' ) : "" );
    }
}